I personally got hooked on this board when I was looking for subjects related to HPLC troubleshooting, a column that I used to write for American Laboratory. I found that many problems are quite interesting, and so I am returning to this board frequently. The reason that I am stating this first is to make clear that have no assignment or that I am feeling compelled to sell my company's products.
On the other hand, as a representative of a company, I have of course much more experience with the products that we make and sell than with competive products. As a consequence, when I suggest something, it may very well involve our products. This is even more likely, if our products have unique features that can not be found with competitive products. In this case, there is no way around this, and the name of the product must be mentioned.
This is of course the case for my colleagues at competing companies as well. Yuri Zelechonok has no other solutions to offer than his mixed-mode phases, and so he will mention them whenever it seems to fit. I personally find this annoying, but probably more so because I do not have his solutions in my bag...
On the other hand, this could simply be question of style. I am never annoyed by Chris Pohl's posts, since they reflect an excellent knowledge of chromatography, and because he does not shy away from tackling problems that have nothing to do with his company's products. The same is true with Einar Ponten, for example.
My advice to Yuri would be to get involved in discussions that do not force him to talk about his products. Maybe one will get a more balanced view of his abilities, and consequently of his company's products.
Feel free to disagree with me...